| 摘要 |
<p>PURPOSE:To secure sufficient roof strength by providing a top section which is arranged to the direction of a ridge piece, and concurrently providing a slant section which is joined with one end of the top section which is disposed with and inclination in response to the roof shape in the ridge direction. CONSTITUTION:A bent beam 100 is made up out of a top section 10 composed of channel steel arranged in the direction of a ridge piece and of a slant section 20 made of channel steel which is disposed with an inclination in response to the roof shape in the ridge direction. The top section 10 is then joined with the slant section 20 by means of butt welding, a reinforcing haunch member 30 is fixedly provided for the lower section of a joint, and a stationary member 14 is provided for the tip end of the top section 10. In the second place, the upper surface of the bent beam 100 is provided with mounting members 12 and 22 in which bed axial members 410 are fixedly provided, and a roof board 420 is laid on the bed axial members 410, so that a house is roofed with roof panels. By this constitution, it is thereby possible to make good use of the space of an attic.</p> |
